package com.xiaode.util;

import java.awt.Color;
import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.image.BufferedImage;
import java.io.*;
import javax.imageio.ImageIO;

public class ImageZipUtil {
    /**
     * 根据设置的宽高等比例压缩图片文件<br>
     * 先保存原文件，再压缩、上传
     *
     * @param oldFile 要进行压缩的文件
     * @param newFile 新文件
     * @return 返回压缩后的文件的全路径
     */
    public static String zipImageFile(File oldFile, File newFile) {
        if (oldFile == null) {
            return null;
        }
        try {
            /** 对服务器上的临时文件进行处理 */
            Image srcFile = ImageIO.read(oldFile);
            int w = srcFile.getWidth(null);
            int h = srcFile.getHeight(null);
            int w1 = w;
            int h1 = h;
            if (w < 800 && w > 200) {
                w1 = (int) (w - w * 0.3);
                h1 = (int) (h - h * 0.3);
            } else if (w < 1600 && w > 800) {
                w1 = (int) (w - w * 0.4);
                h1 = (int) (h - h * 0.4);
            } else if (w < 2500 && w > 1600) {
                w1 = (int) (w - w * 0.45);
                h1 = (int) (h - h * 0.45);
            } else if (w < 4100 && w > 2500) {
                w1 = (int) (w - w * 0.5);
                h1 = (int) (h - h * 0.5);
            }
            String srcImgPath = newFile.getAbsoluteFile().toString();
            String subfix = "jpg";
            subfix = srcImgPath.substring(srcImgPath.lastIndexOf(".") + 1, srcImgPath.length());

            BufferedImage buffImg = null;
            if (subfix.equals("png")) {
                buffImg = new BufferedImage(w1, h1, BufferedImage.TYPE_INT_ARGB);
            } else {
                buffImg = new BufferedImage(w1, h1, BufferedImage.TYPE_INT_RGB);
            }
            Graphics2D graphics = buffImg.createGraphics();
            graphics.setBackground(new Color(255, 255, 255));
            graphics.setColor(new Color(255, 255, 255));
            graphics.fillRect(0, 0, w1, h1);
            graphics.drawImage(srcFile.getScaledInstance(w1, h1, Image.SCALE_SMOOTH), 0, 0, null);
            ImageIO.write(buffImg, subfix, new File(srcImgPath));
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
        return newFile.getAbsolutePath();
    }

    /**
     * 根据设置的宽高等比例压缩图片文件<br>
     * 先保存原文件，再压缩、上传
     *
     * @param oldFile 要进行压缩的文件
     * @param newFile 新文件
     * @return 返回压缩后的文件的全路径
     */
    public static String zipImageFile(File oldFile, File newFile, double display) {
        if (oldFile == null) {
            return null;
        }
        try {
            /** 对服务器上的临时文件进行处理 */
            Image srcFile = ImageIO.read(oldFile);
            int w = srcFile.getWidth(null);
            int h = srcFile.getHeight(null);
            int w1 = w;
            int h1 = h;
            w1 = (int) (w - w * display);
            h1 = (int) (h - h * display);
            String srcImgPath = newFile.getAbsoluteFile().toString();
            String subfix = "jpg";
            subfix = srcImgPath.substring(srcImgPath.lastIndexOf(".") + 1, srcImgPath.length());

            BufferedImage buffImg = null;
            if (subfix.equals("png")) {
                buffImg = new BufferedImage(w1, h1, BufferedImage.TYPE_INT_ARGB);
            } else {
                buffImg = new BufferedImage(w1, h1, BufferedImage.TYPE_INT_RGB);
            }
            Graphics2D graphics = buffImg.createGraphics();
            graphics.setBackground(new Color(255, 255, 255));
            graphics.setColor(new Color(255, 255, 255));
            graphics.fillRect(0, 0, w1, h1);
            graphics.drawImage(srcFile.getScaledInstance(w1, h1, Image.SCALE_SMOOTH), 0, 0, null);
            ImageIO.write(buffImg, subfix, new File(srcImgPath));
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
        return newFile.getAbsolutePath();
    }

    /**
     * 按设置的宽度高度压缩图片文件<br>
     * 先保存原文件，再压缩、上传
     *
     * @param oldFile 要进行压缩的文件全路径
     * @param newFile 新文件
     * @param width   宽度
     * @param height  高度
     * @param quality 质量
     * @return 返回压缩后的文件的全路径
     */
    public static String zipWidthHeightImageFile(File oldFile, File newFile, int width, int height, float quality) {
        if (oldFile == null) {
            return null;
        }
        String newImage = null;
        try {
            /** 对服务器上的临时文件进行处理 */
            Image srcFile = ImageIO.read(oldFile);

            String srcImgPath = newFile.getAbsoluteFile().toString();
            System.out.println(srcImgPath);
            String subfix = "jpg";
            subfix = srcImgPath.substring(srcImgPath.lastIndexOf(".") + 1, srcImgPath.length());

            BufferedImage buffImg = null;
            if (subfix.equals("png")) {
                buffImg = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
            } else {
                buffImg = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
            }

            Graphics2D graphics = buffImg.createGraphics();
            graphics.setBackground(new Color(255, 255, 255));
            graphics.setColor(new Color(255, 255, 255));
            graphics.fillRect(0, 0, width, height);
            graphics.drawImage(srcFile.getScaledInstance(width, height, Image.SCALE_SMOOTH), 0, 0, null);

            ImageIO.write(buffImg, subfix, new File(srcImgPath));
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
        return newImage;
    }

    
}
